Home / 778,765.37-1,074,689.96-452,108.69

Finding the Fourth Proportional to 778,765.37, 1,074,689.96 and 452,108.69

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Solution

The fourth proportional to 778,765.37, 1,074,689.96 and 452,108.69 is: 623,906.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,765.37 : 1,074,689.96 = 452,108.69 : x
  2. Step 2: Convert to fraction form
    778,765.37/1,074,689.96 = 452,108.69/x
  3. Step 3: Cross multiply
    778,765.37x = 1,074,689.96 × 452,108.69
  4. Step 4: Simplify right side
    778,765.37x = 485,876,669,971.75
  5. Step 5: Solve for x
    x = 485,876,669,971.75/778,765.37
  6. Step 6: Final answer
    x = 623,906.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.